When you are not looking I will drink the beer, refill it with water, and then you can store it as long as you wish. It only works when you are not looking because if you see me drinking the beer you may want some thus killing any future collectibles I may have to drink for you.

You can't buy just one.
This March, I bought 8 DFH 120s to share w/ my GF. We each drank one that night. Had the 2nd pair this weekend. Next pair will be in 6 or more months.
It's a different beer altogether now. She liked it fresh. Din't like it 9 months old. I like it more now. Can't wait til summer!

ALWAYS BUY TWO, that way you can have one enjoy it, and wait until your will power gives in to have the second.... For some that would be called collecting others it would be called days.... im somewhere in between, like 3 months...